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jarptica [38.1K]
3 years ago
13

If x2+y2=40 and xy=5 then find(x+y)2

Mathematics
1 answer:
VMariaS [17]3 years ago
8 0

Answer:

(x + y)^2 = 45

Step-by-step explanation:

(x + y)^{2} = x^{2}  +xy + y^{2}

             = 40 + 5 = 45

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Step-by-step explanation:

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What is -6x+9+4x-9 equal too
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Write the equation of the line that passes through (2,3) and (4, 1) in point-slope form. Use (2,3) for (x1, y1).
earnstyle [38]

Answer:

y-2 = -(x-2)

Step-by-step explanation:

To find the slope

m = (y2-y1)/(x2-x1)  where (x1,y1) and (x2,y2) are two points on the line

    = (1-3)/(4-2)

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The point slope form is

y-y1 = m(x-x1)  wher m is the slope and (x1,y1) is a point on the line

y-3 = -1(x-2)

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3 years ago
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